after temperatures the bushes and trees, the rider is nowhere to be found. down the way, someone has driven their $90,000 tesla model f off a freeway on-ramp and into an embankment and taken out a metering light in the process. >> he is a little unsteady on his feet. i also noticed that he had looked like a fresh piece of gum in his mouth. a lot of people think that's going to take away from the odor that i'm smelling. >> reporter: but despite those clues, the driver passes the sobriety test. tonight some people out celebrating st. patrick's day tell us drinking is just part of this holiday. it comes with an obligation to drink responsibly. >> definitely call a taxi. get a friend to drive you home. call your mom. whatever you need to do to be safe. >> for the most part i think so. everyone is trying to be smart. they don't want to get too stupid. >> reporter: the officers we spent time with tonight made no arrests during the two hours that we were them. but they said last night the dui activity ramped up after midnight. so just a word of caution for anyone t